8204222171 has 2 divisors, whose sum is σ = 8204222172. Its totient is φ = 8204222170.

The previous prime is 8204222141. The next prime is 8204222189. The reversal of 8204222171 is 1712224028.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8204222171 is a prime.

It is a super-2 number, since 2×8204222171² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (8204222101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4102111085 + 4102111086.

It is an arithmetic number, because the mean of its divisors is an integer number (4102111086).

Almost surely, 2^8204222171 is an apocalyptic number.

8204222171 is a deficient number, since it is larger than the sum of its proper divisors (1).

8204222171 is an equidigital number, since it uses as much as digits as its factorization.

8204222171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3584, while the sum is 29.

The square root of 8204222171 is about 90577.1614205259. The cubic root of 8204222171 is about 2016.8757188046.

Adding to 8204222171 its reverse (1712224028), we get a palindrome (9916446199).

The spelling of 8204222171 in words is "eight billion, two hundred four million, two hundred twenty-two thousand, one hundred seventy-one".